<li><a [routerLink]="['/two']">首页 </a></li>
<li><a [routerLink]="['/one']">one </a></li>

<router-outlet></router-outlet>
<div>
  <span> test the ng-bootstrap</span>
  <div [(ngModel)]="model" ngbRadioGroup name="radioBasic">
    <label class="btn btn-primary">
      <input type="radio" [value]="1"> Left (pre-checked)
    </label>
    <label class="btn btn-primary">
      <input type="radio" value="middle"> Middle
    </label>
    <label class="btn btn-primary">
      <input type="radio" [value]="false"> Right
    </label>
  </div>
  <hr>
  <pre>{{model}}</pre>
</div>
